This is Tom Garing who has designed, documented and built a 1/12th Scale RC Model of a 1960s vintage P&H model 1015 lattice boom crawler crane.  So far I have posted 5 You Tube videos on the model, its support equipment and the tools that I used to build it. 
To view my Playlist, go to 
https://youtube.com/playlist?list=PL...EjLJ1cWKQt5IF4 
to view my You Tube channel videos on this model build and to subscribe for future videos detailing the the various aspects of the build.   Questions?  Email me @ 
cranemodel1015@gmail.com
Thanks for your interest in my model.
Stay SAFE!
Tom